近似公式 的英文怎麼說

中文拼音 [jìnsìgōngshì]
近似公式 英文
approximate formula
  • 近 : Ⅰ形容詞1 （空間或時間距離短） near; close 2 （接近） approaching; approximately; close to 3 （親...
  • 公 : Ⅰ形容詞1 （屬于國家或集體的） state owned; collective; public 2 （共同的;大家承認的） common; gen...
  • 式 : 名詞1 （樣式） type; style 2 （格式） pattern; form 3 （儀式; 典禮） ceremony; ritual 4 （自然科...
  • 近似 : approximate; similar; approach; approximation; roughness; propinquity
  1. Based on the lambert - beer ' s law and considering the determination of ultramicro amounts of substances by aas, an approximate linear relationship between the transmittancy and concentration of the measured substance was derived

    摘要對原子吸收光譜法在超微量測試中，給出了朗伯比耳定律的近似公式，建立了測定值和透光度的變化值之間的近似線性關系。
  2. Abstract : a new waveguide which can change the wide wall of a rectangular waveguide into a symmetric arc wall is named as a cam - rectangular waveguide. comparing to sectoral waveguide, the new waveguide has the same voltage characteristics and is easier to be produced and fixed. an approximate formula of the dominant mode fields and the normalized conductance of a longitudinal resonant slot cut in the curved wall of a cam - rectangular waveguide are given. a resonant slot linear array in c & x band is designed, in which the slot voltage distribution is equiphase and the input is matched. the input voltage stationary ware ratio and the h - plane pattern of the antenna are measured. the experimental results show the conformance with theoretical results

    文摘:把常用的矩形波導一個寬面改成圓弧形構成的波導稱為圓突-矩形波導.這種波導與扇面波導相比：電性能相當；波導管結構更加簡單，容易加工，便於安裝.文中給出圓突-矩形波導中主模場，圓曲面上縱向槽歸一化諧振電導近似公式.設計了c和x波段波導曲面縱向諧振縫隙線陣，縫隙電壓相位為同相分佈，輸入端匹配.實際測量了天線輸入端電壓駐波比和h面方向圖，理論與實驗相吻合
  3. Evading risk in financial trading market cries for pricing options to a nicety. asian option, as the most flourish options in the finace market, the pricing has been focused on always. the exact pricing formula for the geometric average asian option had existed, but as to the european - style arithmetic average asian option, due to the dependence structure between the prices of the underlying asset, no analytical formula exists. on the hypothesis that the market is frictionless and without transaction costs 、 on the base of b - s ’ s and in the binomial tree model, we provide several algorithms for computing an accurate value of the european - style arithmetic average asian option. following rogers and shi and by jensen ’ s inequality, many different upper and lower bounds are provided ; meanwhile a formula have got by the comonotonicity and approximating the distribution function. all of the algorithms are easy for programming. with the development of computer, more accurater price can be computed quickly. and numerical example proved that these algorithms are very accurate

    對于幾何平均亞式期權它的定價相對簡單，已經給出了定價公式。對于算術平均亞式期權，它的未定權益具有軌道依賴特性，一直沒有得到它的定價方程的解析解形式。本文基於對市場是無摩擦且在沒有交易費用的情況下，在b - s模型下，利用二叉樹模型給出了算術平均亞式期權定價方法;並總結了利用jensen 』 s不等式給出的各種不同情況下的上下界;同時應用共單調性和近似分佈函數的方法也給出了算術平均亞式期權價格的近似公式。
  4. Stationary phase method shows that by using information along the ridge defined by the phase on transformed domain, original signal could be represented and reconstructed

    利用穩定位相法的近似公式分析可知，脊上分佈參數包含的信息與信號瞬時頻率變化規律密切相關，並且可以用來對信號進行重建。
  5. The approximate formula is : the initial bounding rectangle is inflated by pen width, and this result is multiplied by the miter limit, plus some additional margin to allow for end caps

    近似公式為：初始邊框按鋼筆寬度擴充，結果乘以斜接限制，再加上用以容納端帽的一些附加邊距。
  6. Starting from virtual work principle, with the combination of fem, the author led into elastic stiffness practical formulation of bi - direction cellular slab. after comparing the bi - direction elastic stiffness formulation with the approximately stiffness formulation, the author drew such a conclusion that if the hole - rib is comparatively big, the elastic stiffness of bi - direction cellular slab calculated by approximately formulation would be comparatively small, and therefore the elastic stiffness could calculated by the formulation illustrated in this paper

    本文從虛功原理出發，結合有限元方法，給出了雙向空腹板的彈性剛度實用計算公式，並與近似剛度公式進行對比分析，並得出結論：在雙向空腹板孔間肋較大情況下，利用近似公式計算雙向空腹板的彈性剛度偏小，可按本文提出的彈性剛度公式進行計算。
  7. Calculate the dynamic stress intensity factor of simple edge crack round bar specimen in three point bending of nanling marble

    計算大理巖帶直切口三點彎曲棒梁試件的動應力強度因子的近似公式
  8. The main contributions of the dissertation are as follows : on the basis of experimental results, the operational effects, such as the magnitude of magnetic field, the temperature and the rate of shear strain, on the shear stress of the mr fluid are shown and models of the quasi - bingham model and a nonlinear model for the shear stress of the mr fluid also are developed, in which the characteristic of " shear - thin " of the mr fluid is described

    論文的主要貢獻如下：通過測試磁流變液剪切應力與磁感強度、剪切應變速率、溫度的變化規律，建立了能反映磁流變液剪切變稀現象的剪切應力與剪切應變速率的磁流變液模型。根據磁流變液模型，從理論上建立了能在較寬的電壓內范圍比較準確地預報磁流變阻尼器輸出力的近似公式。
  9. Third, the three methods including inertia ! completion, modal cost analysis and inner balanced method are researched respectively and deeply. in the case of the small damping and widely separated natural frequencies, the approximation expression of the modal cost is introduced, and the system is approximately balanced

    重點介紹了系統各階模態價值的封閉表達式和在弱阻尼、頻率足夠分開的情況下模態價值的近似計算公式；以及在弱阻尼、頻率足夠分開的情況下系統近似為內平衡，系統的奇異值也可由近似公式計算得到。
  10. At last, the valid data based fast emd algorithm was proposed. chaper five aimed to the requirement of the emd based time - frequency analysis in the field of rotating machinery signal analysis and fault diagnosis. studied the method of rotatory speed prediction to improve the precision of complete period sampling of vibration signals in rotating machinery, then, discussed the phenomenon of mode fission in noise signal anlysis by emd and provided the filter method to weaken the phenomenon. after then, found a process to analysis the signals using emd - based method in the field of rotating machinery signal analysis and fault diagnosis

    第五章針對旋轉機械信號進行emd時頻分析的要求，提出了提高整周期采樣精度的預測演算法和適合於單片機計算的近似公式；論述了模態裂解現象，並通過模擬信號和實際信號的研究，提出了使用濾波技術來減弱模態裂解現象的方法；給出了適合於旋轉機械振動信號基於emd時頻分析的工作步驟；研究了基於emd的旋轉機械振動信號自適應濾波技術。
  11. Abstract : the second scalar analysis method to calculate the di ffraction efficiency of grating was described in detail, a simple effective approximation formula to calculate the diffraction efficiency of grating was educed. diffraction efficiencies were given and compared with scalar results, rigorous vector results

    文摘:詳細介紹了計算光柵衍射效率的二階標量近似法，推導出一種簡單有效的計算光柵衍射效率的近似公式.給出了利用近似公式對幾種情況下光柵衍射效率的計算結果，並與普通標量法、嚴格矢量法的計算結果進行了比較
  12. New approximation formula for calculation of elastic impedance in anisotropic media

    一種新的各向異性彈性阻抗近似公式
  13. An approach to application of approximate formular in calculation of index of coal preparation

    近似公式在測算選煤指標中的應用探討
  14. Approximation of erfc x and its application in determining the groundwater transport parameters

    近似公式及其在求解地下水運移參數中的應用
  15. Application in high precision gps kinematic positioning shows that the approximate form causes markable velocity and acceleration errors

    在高精度gps動態定位中的應用證明，常用近似公式對載體速度和加速度有顯著的影響。
  16. In order to illustrate the valid range of the axial intensity expression and approximation formulae numerical results of both the methods are compared

    使用軸上光強公式和近似公式對焦移計算結果的比較證明了近似公式的適用范圍。
  17. Abstract : after given the theoretic form and its widely used approximate form of the vehicle state equation, difference between them is discussed in detail

    文摘:給出了載體狀態方程的嚴密公式和常用近似公式，詳細討論了兩者之間的區別。
  18. We simply discuss those which are of importance to realizftg bandwidth requirement and with an approximation formula, the bandwidth is estimated

    本文簡單地分析了實現帶寬要求的主要因素，並應用近似公式對帶寬作出了估計且表明帶寬要求是可以實現的。
  19. In this paper, we aim at the research to the decoding algorithm of turbo product codes, according to the principles of the log - likelihood ratio and the maximum a posteriori criterion, bunt the log - likelihood ratio approximating expression, form the correct strategy of iterative soft decoding, and present the optimal algorithm through software

    幾乎所有tpc的應用研究都集中於採用矩陣交織，軟進/軟出（ siso ） 、重復譯碼的方式上。本文主要是針對tpc譯碼演算法進行研究，依據對數似然概率（ llr ）和最大后驗準則的原理，推導出對數似然概率估算的近似公式，形成tpc重復軟譯碼糾錯演算法，並通過軟體實現。
  20. ( 3 ) by means of expanding the aperture function into a finite sum of complex gaussian functions, the propagation of fgbs through a paraxial optical abcd system with hard - edged aperture is studied, and the approximate closed - form equations of apertured fgbs are obtained for the first time. the results obtained by using the approximate closed - form equation and collins formula are compared, and the condition under which the approximate closed - form equation is applicable is analyzed

    （ 3 ）利用光闌函數的復高斯函數展開法對截斷平頂高斯光束的傳輸作了研究，首次得到了截斷平頂高斯光束在近軸abcd光學系統中傳輸時的近似解析傳輸公式，通過比較用近似傳物公式和colhns公式直接數值積分所得的結果，得出了近似公式的適用范圍。
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